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Introducing ICT systems

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Information and communication technologies (ICTs) systems now dominate our everyday lives. This free course, Introducing ICT systems, will explain what constitutes such a system and how ICT systems work. You will also look at how ICT systems convey, store and manipulate data, and how they process data. Finally you will learn how these systems are used.

After studying this course, you should be able to:

  • understand the meaning of all the terms highlighted in the text
  • demonstrate an awareness of the main processes in an ICT system (sending, receiving, storing, retrieving, manipulating, conveying)
  • demonstrate an awareness of some of the hardware, software and communication components used in ICT systems
  • use a system map or a block diagram to identify the components of an ICT system
  • use the units for conveying data and those for storing data apporpriaterly, including use of the prefixes kilo, mega and giga.

By: The Open University

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7 Describing an ICT system: conclusion

We have arrived at a model of a communication system that illustrates the processes needed for communication. We have also looked at the different kinds of communication link that can be used to convey data, and how to express the rates at which they can convey data. In sections 8–14, we shall be looking at a computer system as an example of an ICT system where data manipulation and storage are the most important features.

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